Hi, I've very recently bought a second hand hp laptop, yesterday it got a bug and I decided to do a complete reset and erase all personal files, so after it had finished that it began to turn on and load up it reached the screen with the windows logo and the loading circle when the screen changed and preparing was written underneath the circle, then a box appeared that said the computer restarted unexpectedly or there was an unexpected error, and the windows installation cannot proceed. To install Windows he computer has to restart, so I clicked okay to restart it and it went through the loop again. Please help !!